text: """merge remove_device_id and message_blacklist
  
  Revision ID: 822b8de2c260
  Revises: 61e52d26ebea, 9ea5d4d49609
  Create Date: 2016-06-23 10:13:56.776950
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '822b8de2c260'
  down_revision = ('61e52d26ebea', '9ea5d4d49609')
  branch_labels = None
  depends_on = None
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      pass
  
  
  def downgrade():
      pass
  